Neighbourly harmony: This week Jeremy Corbyn appointed three MPs representing constituencies immediately next to his

Ardent Corbyn supporter Diane Abbott, MP for Hackney North and Stoke Newington, was named the new shadow Home Secretary.

The Labour Party leader is MP for Islington North.

This map was shared on Facebook by Alexander Redpath, who posted: 'Labour really is being run by the Islington set. Below shows the constituencies for the Leader of the opposition, shadow foreign sec, shadow home sec, and Brexit sec.'

Mary Kalandarishvili branded the quartet an 'Islington mafia', while Stephen Hoffman called them 'champagne socialists'.

There was said to be unhappiness among Labour MPs at the promotion of Mr Corbyn's long-time ally Ms Abbott to such an important post.

John Cryer, the influential chairman of the Parliamentary Labour Party, blasted Mr Corbyn by accusing him of starting the reshuffle without consulting colleagues.

Mr Cryer said Mr Corbyn's team 'did not engage in the talks in any constructive way' and said 'I deeply regret this turn of events'.

In response, the Leader's office insisted it had held 'extensive talks' on the issue.

In a bid to stress regional balance in the top team, Mr Corbyn said the appointment of Jonathan Reynolds to the role of shadow economic secretary to the Treasury meant there are 10 MPs from the north of England on the front bench.

Former whip Tom Blenkinsop was quick to hit out at the leader over his reshuffle, accusing him of rowing back on his promise to unite the party.

He said: 'Clear Corbyn wants submission not unity. Ignoring wishes of the PLP and just sacking and appointing regardless.'